In this paper, we characterize SEP elements and GSEP elements by various methods. SEP elements are mainly characterized by a element in a given set, and then extended to GSEP elements. GSEP elements ...
In this article, we presented some necessary and sufficient conditions for elements in rings with involution to be a partial isometry, strongly EP element and generalized inverse by using solutions of ...
THIS is an enlarged and beautifully produced edition of a pamphlet which has been circulated before under the simpler title “The Trisection of an Angle”. Since Euclid cannot be supposed to have ...
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